I've been developing for 10 years. I have never had a team, so I have had to build each stack from scratch, myself, including the research and decision making of each tool to use in the stack.
I've put together about 4 generations of systems in this time, each with entirely fresh stacks. The first was pre-build-tools, so I had to write my own module loaders and bundlers from scratch.
The latest web stack uses containerized deployment in a micro service architecture, sql, nosql, rest, graphql, a jwt-based authentication gateway and a modern front end stack.
Do I qualify as a full stack dev?